Don't overlook the bakc of the intake, vlave covers, cylinder heads, cam and oil galley plugs I brake clean the area including in side the BH until it is dry as the mojave in august.
Start the motor, let it idle till warm and check.
Next start again runt at ~ 250 RPM for 3-5 minutes, check again.
Next a short road test at lower speeds.
Finally a highway run if needed.
try some uphill downhill runs if possible.
keep us posted.